Slovakia, Košice Region
Dubník Opal Mines (Červenica), Slovakia
Gem locality Inferred from historyPermission required
What you could find
Reported finds from this ground.
Opal
Agates and jasperPhotos via Wikimedia Commons: Dpulitzer (CC BY-SA 4.0), Teerui (Public domain).
Why this spot
Rockhounding locality: precious opal in andesite
World's oldest precious opal mines, historically famous, well documented.
Before you go
Hazards noted for this site.
Old mine workings
Keep exploring nearby
More spots in this area.